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Two identical small balls each carrying like charges but in different amounts are suspended from two identical threads from a point.the angle between the threads at equilibrium is 74​​ degrees and is 60 degrees when immersed in a liquid. Find the relative permittivity of the liquid (neglect buoyancy forces).

Two identical small balls each carrying like charges but in different amounts are suspended from two identical threads from a point.the angle between the threads at equilibrium is 74​​ degrees and is 60 degrees when immersed in a liquid. Find the relative permittivity of the liquid (neglect buoyancy forces).

Grade:6

1 Answers

Nicho priyatham
625 Points
8 years ago
appling lami’s theorem and solving carefully we get
 
1/(permittivity) is praportional to tan@sin2@
use the above equation to get the ans
PLZ APPROVE if use full and in case of any doubts put it in ansbox
 

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